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The aFe Magnum FORCE straight reducing coupler joins 4" and 3-1/2" tube sizes over a 3-1/2" length using 3-ply reinforced high-temp silicone for strength and flexibility. It includes stainless-steel worm-gear #056 and #064 clamps to ensure tight, corrosion-resistant connections in truck, off-road and racing intake systems and accommodates expansion, movement and vibration without compromising the seal.
aFe Magnum FORCE Intake Coupling Kit (4 IN ID to 3-1/2 IN ID x 3-1/2 IN L) Straight Black
